The Underground
type: MusicRecording
duration: PT4M6S
duration ms: 246000
explicit: false
by artist: CESRV
in album: The Underground
  type: MusicAlbum
  date published: 2020-10-23
genre: grime
genre: brazilian-hip-hop
genre: boom-bap
genre: brazilian-trap
isrc code: USYBL2001616
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5920f7f43548611e7063dc331e983dc4805b710a16bad4fb5395eecec9ed51. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USYBL2001616.
  date published: 2026-07-08T03:39:04Z
audio: The Underground
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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    value: 11
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    value: 5
  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -14.215
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
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